Running can become an expensive hobby, but starting does not require a drawer of gadgets. Begin with the items that solve a real problem you already have.
The useful minimum
You need shoes that fit comfortably, clothing appropriate to the weather, and a safe way to carry any necessary key, identification, or phone. For low light, add visibility. For longer or hotter runs, plan access to water rather than automatically buying a complicated hydration system.
Buy shoes for fit and purpose
There is no universally best shoe. Comfort, fit, intended surface, durability, and budget matter more than a dramatic product story. If possible, try shoes with the socks you will use and leave enough room for swelling.
Wait before buying the rest
A GPS watch, running belt, vest, lights, anti-chafe product, weather shell, and specialty socks can all be excellent purchases. Let repeated experience tell you which problem deserves money first.
One safety item is not optional
Make it possible for someone to identify you or reach an emergency contact. Tell someone where you are going when conditions or routes warrant it.
Good equipment removes friction from running. It should not create a new performance standard you feel obliged to satisfy.